^1 This link points to another dated post featuring Opera Developer 30 in 2015. Link has been quoted anyway, since the post mentioned the decline usage of 32-bit Linux systems.

The "Browser upgrade required" restriction seems to be added recently. I was still able to use VPN service from Opera for Linux until end of 2017.

Anyway, recent versions of Opera for Linux is for 64-bit systems only.

Solution:2

Looks like it is relatively easy to get to the latest stable release of Opera under Ubuntu 14.04 and version 50.0.2762.45 certainly has a working VPN on my system. Add the following PPA and install opera-stable: